package com.example.demo.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.example.demo.entity.BdMerchant;
import org.apache.ibatis.annotations.Mapper;
import org.springframework.stereotype.Repository;

@Mapper
@Repository
public interface MerchantMapper extends BaseMapper<BdMerchant> {
    // 根据用户id查询图书信息
//    List<Merchant> findByUserId(@Param("userId") Integer userId);
}
